Doorlock



Aug. 11, 1925.

A. F. LICKTEIG DooRLocK Filed uarn 25, 1925 2 Sheefs-Sheet l 3 n w41 to@ Aug. Il, i925.

A. F. LICKTEIG DOORLOCK 2 Sheds-Sheet Filed March 25, 1925 Patented 15mg. l 1', 1925.

AUNIT ED ATES 1,549,674 PAT-ENT OFFICE. l

ALBERT- 1?. LICIITEIG, 0F NEW HAVN, CONNECTICUT, ASSIGNORTO ADAM F. LICI- Tn'm, or NEW HAVEN, Cola-insecureU'r.`

nooaLoCx.

Appueauon alednarcn 25, 192s. seran No. 18,081;

To awhom itmay'concera: A

Be itknown that 1,'ALBEa'r`F4LICx'rmC,

` a citizen of the UnitedStates, residing at -New'Haven, county of New Haven,- State Al5 of Connecticut, have invented a new and preventA the bolt fromv l drawing from the strike'pllate or keeper` un useful Doorlock, of which a specification.

This invention re ates-toiardoor lock, and

although the disclosure has particular re'-.

rerence to an automobile door lock,v my iinproved lock isby. no-means limited to use with automobile doors,`but isradapted for general application. Q

It is an object of the..inventionto-proivide an improved lock-which-,willbesimple in construction and somaybefmanufaetured at low cost, will be reliable 1n not easily:gottenv out of worder.

provide l'locli which may be locked.lr'mj the inside of thedooror the automobile'by a slight. movement ofgthe bolt. operating lever or hndle, `and which when locked will 'accidentally withder vibration and thus a lease of the door. t

It is a-'further object of the inventionto provide a lock, which, .although .it 'mag locked from the inside-by movement'o -tlie operating handle, ma locked V,or unow'v accidental re'- locked from the outsi e by means oa key.

With the fore oing and other'objects in view, I have devised the construction illustrated in the accompanying drawings forming a part of this-specification; similar ref erence characters being employed throughv out the various vfigures to Aindicate correspending elements'. In these drawings,

Fig. 1 is a side elevation of the lock mechanisin in the locked position looking toward the outside of the door and with the outer plate of the casing removed.A v

Fig. 2 is a similar view showing the position of the elements with the bolt retracted.

Fig. 3 is a transverse section substantially on line 3--3 of Fig. 1.

Fig. 4 is a. top plan view looking down en Fig. 1.

Fig. 5 is a detail section substantially on line 5 5 of F ig. 2.

Fig-.5a is a detail section substantially 'on line 5*-5 of Fig. 1.

F ig. 6 is a detail elevation .Showing the operation of the key control cani.

a slightlydiferent constructio vthe following is ,comprises a movable operation -and a curved e Fig. 7-is a similarview showing the operation of retracting the bolt by a .handle on thefoutside ofthe-door. .4

Fig. 8 isa viewsimilar to'Fig. 1 showing 60 Fig. 9 is aview similar to Fig. 8 showing the elements inthe pesition they occupy when the bolt is retracted, and i". v Fig. lois -a transverse section substaii-l tially on line l0-10. of Fig. 8. Generally speakin .fmy '.fimproved lock lt'normally held inA securing position byfa' spr ','apivotedfop# erating yleverconnbted--to t e bolt, a mov-'.1v ableactuatingmein r which has'lost mofffof tion connection VwithvtlieA lever, and whiclil lever and .actuating member have coactiii'g` shoulders. which in -.one position A of the .ac-

tuating member lock the-lever againstmove'- nient, and an operating handle connectedg75 to the actuating member for shiftin this.` member tofirst unlock the lever an then `swing thelever to' retractthe bolt. One Y form-ofmy invention'has urthervmeans f lnot shown, to and from a jamb or one side-- of the door opening 1.11... The lock mechamsm is mounted in a cas` F12 open at one -side which is closed-,by the 'platell'r one '90 side of the platebeing bent at an :angle as shownat 14 and provided with an opennig through'which the head 15 ofA the'bolt'16 projects, and in which it is slidable. The bearin crea by bending laterally the portion of `the `platefatthe side of the opening, as

lsliown at`17. The bolt 16 in the', present construction is a s'lidable bolt andcgriies a laterally 'projecting pin 18 extending into 100 an elongated slot 19 in tlie-platef^13iand in which it is guided. An 'operating lever 2O is pivotally mounted in the casing `at 21. and this lever engages the-pin 18 adjacent'- its free end the lever being provided .witli'-,105

v dge 22 which engages this fpinf This lever carries a laterally projectingvpin v'or stud 23 which extends into an elongated lslot 24 in a movableactuated. member'25.

In the present constructionthe member 25.11

surface for the head maybeimA 96 is slidable on .the top of the bolt. Mounted to turn inthe casingand extending verticallytherein is a shaft 26 having an oper` `atin handle- 27 connected thereto. The

sha tis provided with a laterally extending. arm 28 'havinga lu'g- 29 which may in a certain position of 'theshaftf enter a 'recess 30 in theupper "edge of the bolt Fig. 1. It will be apparent .that the lug'` V`16 and lock .the bolt against movement. Th1

's is the' positionshown'in full lines in '29`when in-'this1 position is in thepath of 'to receive and'straddle i the -arm 28 sothat' this member may be 'shifted by the swinging l' but as the'recess'is openon `the side movement of theshoulder-at 'the outer; side of the recess 30 and will, thereforekprevent inward or retracting movement of e'fbollt,

o t e bolt 'this lug may -move :fromv the recess when the vshaft-is turned -to the'dotted 'line .position in Fig. 4. The actuating slide or member hasa recess`31 which. is adapted movexvnent` of the armas the shaft is turned aboutits axi`s.` Thefnotch'onfrecess 31 is,

.hlOwevenof a greater width than the thick- .ness f the'arm-to allow certain4 lost mo- Lpresentl to be described.. The "sha tionbetween the elements fori a4 ur'pose 26 is 'provide` with a. pair of flats' 32' and 33 on usual operation by means of a spring 36.

different sides thereof which are engaged b aspring 34 to yieldingly retain-this sha in either .the full line or dotted line' posi# mally jecting through an openingin thestrike plate35 carried by- 'the jamb 11 as 1s the This spring may. be of any desired or Apreferred construction but -xs-shown as a conevolute spring havln'g a free end 37 engaging the pin 18 carried by the bolton the opposite side from the engagement of the operating lever 20 therewith. At-its other end it 1s secured to the casing by any means 36 desired. Y

' I also prefer to use another sprin 38 'which is connected to the operating ever 20 and tends to swing it clockwise Aas viewed .59A

in Figs. 1 and 2, although this springis not absolutely necessary, and the pivot 21 for this lever is so located that'should this spring 38 fail or become broken the lever l will of itsl own weight tend to moveto the willlie over the shoulder lever and will prevent this lever swin ing backwardly or to the right as viewe in Fig. 1. Y A

here is also provided a, cam or follower 43 which is rotatably mounted in the casing and has a square opening, 44 to receive' the usual square `spindle or a latch operating handle 4 5 (Fig. 7) on the outside .of the door.` This cam or follower is, mounted so that the projecting ends thereof will en`- gage the edge Aof the operatingFlever 20 and I'als'o provide key control means for'locking or unlocking the bolt. I 'haveshown the usual cam 46 connected to 4G 'carried by the swing the same, as shown in g. 7, on Ypivot to retract the bolt when-the boltjis unlocked.A

For this purpose. A

.themrdinary type 'of pin tumbler cylinder .i -47 which is accessiblel from the outside of the door for operation bythe usual key 48. f

The actuating member 25x is provided-with and lock or nnlo'ckthe bolt. 4 Y Theoperaton -of this` lock is Jas follows: When the dooris closed 'and the handle 27 is in the full line position showninvFigs.

member l a recess 49 in one edge thereot to coact with -this cam 46 to shift the vactuating land 4`the bolt -is extended into engagement @with the strike plate or keeper, as shown in full lines, and the lug 29 on the arm v28 carried by the shaft 26 is seated in the'notch'or recess 30 and will lockA the bolt in this position so '-that'it cannot be retracted, and the handle and shaft will be held in thisposit-ion by the spring 34 engaging the flat 32` If it is now desired to unlock the door from the inside the handle 27 is shifted-inwardly -a short distance to the dotted line position shown in Fig. 4. This movement will withdraw the lug 29 from the recess 30 in the bolt and will thus unlock the bolt and` allow it to move backwardly either by slam-4 ming the door or by operationof the lever 20. This movement of the handle by swing# ing the arm 28 shifts the actuated member 25to the right as viewed in Fig.- l'to the. A

dotted line position. This movement is Sullicient to move the shoulder 42 carriedby the actuating member away from and out of the path of movement of the shoulder 40 carried by the'operatinglever, and will thus unlock this lever. It will also bring vthe left hand end of the slot 24 into engagevment with the pin 23 carried bythelever 20. It will thus be seen that thejbolt cannow be retractedlby swinging the cam or follower 43 by means of the handle 45'on the outside of the door, as shown in F ig.4 7, if desired. The shaft 2(4)' and the handle 27 will be .held in this position bythe-spring 34 engaging the fiat 33.

If the handle27 and shaft 26 are swung still further in the same direction, as to the dot and dash line position shown in Fig. 4,

the arm 28 will shift the actuati member 25, still further to the right, and t e end of r the slot 24 engaging the pin or stud 23 on the lever 20 will swing ,this lever` to the right and by engagement of the lever with the pin 18 on the bolt 16 will retract the 'bolt and allow the do or to be opened. The .lelements are now in the positions shown in .Fig 2. As soon as the handle is released the springsl 36 and 38 .will return thel handle to the dotted line position-shown in- Fig. 4, the actuating member tothe dotted line position shownin Figfl` and the bolt and operatinglever to the full line position shown in Fig. 1. As 'pointedout above, when the may belocked from the inside without the nsefof a separate catch or key but b v means off'theoperating handle. The bolt may be locked fromthe outside by means of a key 48 by-rotating the cam 46 to engage the left side of the recess 49v to shift the actuating .member fromtne-dotted line position (Fig. 1) to the full line position. This will brin@r the rib 41 carried by the actuating mem r over the-lug 39 carried bythe operating leverand will lock the lever so that it cannot be swung backwardly by the handle 45 `to retract the bolt. By rotating'the cam 46 in the opposite direction it will enthe right hand side of the recess 49 gae an shift the actuating member 25 to the vright to the dotted line position in Fig.` 1

and move the rib 41 away from the l'ug 39 and unlock the operating lever 20. The bolt may now to retract/ed by turning the hanf dle 45.

It will be apparent from the foregoing description that the bolt is not operated direct from the shaft 26, but that the shaft shifts the actuating member 25 which swings the operatingY lever 20 and this lever retracts the bolt. There is, however, a 'direct acting locking means for the bolt carried by the shaft, and thus, although the bolt may be retracted by the shaft through the handle 27, it may also be locked and unlocked by a small movement of this handle. There is also a positive lock between the actuating member and the operating vlever which may be controlled by the handle 27 or may be controlled by the key controlled cam. The positive lock for `the bolt is 1mrtant in automobile use, and the feature of locking by means of the operating handle gives a very quick and4 simple operated means of locking the door from the inside without the necessity of manipulating a separate catch or lock and without using the key. The operator, therefore, in a closed 'car when leaving the car may lock the door on the opposite side from the side on which he leaves the car by merely pushing outwardly on' the handle 27. This is also a safety feature, because, when the handle is in this position there is a positive `lock for the bolt, so that 'should some one be' leaning against the door the jar could not cause the bolt to move backwardly and the pressure on the door hold itin this position until another slight backward movement caused by a jar and so on until the bolt is eventually fully retracted and allow the door to open, as has actually happened in the old types of constructions. It will be apparent in this-construction there is no possibility of the bolt. accidentally becoming retracted to release the door. lVhen the lock is used in house doors this positive locking feature will prevent the bolt being retracted by the insertion of a thin 'strip of metal betweentbe edge of the door and the jamh. The side of the recess which engages the lug 29 may be inclined at the rear portion thereof as shown at 30 to engage the lug 29 so that an attempt to force the bolt backwardly vill tend to keep the lug in the? recess and so will not turn the shaft to remove thc lug from the recess. l

In Figs. 8, 9 and 10 I have shown a slightly different construction. In this construction, instead of a rotary. shaft 26 for operating bolt 16, I employ a. lever 50 pivoted in the casing at 51 so as to swing in the plane of the door.. The 'holt is operated by the same operating leve-r 20. but the actuating member 52 is of a somewhat different construction than the actuating member 25 in the first construction. This actuating member has an elongated slot 53 to receive the pin or stud 23 carried by the lever 20, but ithas an arm 54 which is pivotally connect-ed with the lever 50 by any suitable means as a screw stud 55.. The actuating member 52 has an upright rib 56 corresponding 'ro the rib 41 in the first form which coacts with the lug 39 on the lever 2O to lock this lever against movement the same as in the first form. The actuating member .52 is also provided with a recess 5( for coaction with the cam 4G of the key cylinder `whereby this actuating member may be shifted to lock or unlock" the lever.

lt will vbe noted that in this form there is no direct incl-:ing means from tbe`lever 50 to tht` bolt 16 corresponding to the locking means 29 and 30 in the tiist form, and therefore7 the bolt carries a second stud or pin on the ommsilc side of the lever from the pin 1S. lt will. therefore. be seen that when the actuating member 52 is in the full line position of Fig. 3 the rib 56 will he in the path of movement of the lug 39 on the lever 20 to prevent backward movement A vent this backward drawn to the dotted line position carrying the rib 56away from the lug 39 and unlock the lever 20' so that the bolt may be retracted. This movement to the dotted line position willtakeplace without shifting. the lever 2O because-of the elongated slot-53, butcontinued movement of the lever 50 front-the dotted line position in Fig. 8 .to the position shown in Fig. 9 will swing' the lever 20 and retract the bolt as indicated. When thebolt is unlocked it may be swung to retract the bolt by means of the cam or follower 43 operated by a handle on the outside of'the door, the same as in the first form', and the actuating member 52 may be shifted to locker unlock the levez; 20,- and therefore, the bolt 16, by means of a key from the outside of the door operatinfr through the pin tumbler cylinder f7-and the cam 46, the same as in the first form. It will be noted that in thisformthe bolt is locked against retraction by 'a slight movement of the operating lever 50 the same as in the first form, and that it is first unlocked by a slight movement of' this vleverin the opposite direction` and` may then be retracted Vby a further movement in the same direction, the same as in the first form. 'This lockin means in this form will also prevent the bo t becomingaccidentally released in operation, and the lever 50 may be yieldingly held in either the full line or dotted line positions in Fig. 8 by a spring 60 engaging recessels-Gl in the side of the lever.

Having thus set forth the nature of my invention, what I claim is: Y

1. In a lock, amovable bolt, a lever having connection with the bolt for operating the same, a movable actuating member hav ing a lost motion connection with tlie lever, said lever and actuating member being provided with coacting means to prevent movement of the lever when the actuating meniber is in a given positiem'and means for shifting the actuatingmember to retractI the bolt.l

2. In a lock, a movable bolt, an operating Amember for the bolt, a movable actuating member having operative connection with the operating member, said members being provided with coacting means .to prevent movement of the operating member when the actuating member is in a given position, and means for moving the actuating member to unlock the operating member and to retract the bolt.

3. In a lock, a movable bolt, an operating member for the bolt, a movable actuating .actuating member to unlock the operating member.

4.7In a lock, a, movable bolt a pivotedV lever havin connection with the bolt for operating t e same, `a movable actuating member having a. lost, motion connection 1 with 'the lever, said; lever and actuating member being provided with coacting meansl to vprevent movement of the -lever when the actuating member is in a given position, and

key cont-rolled' means for shifting the actuating member to iinlock the lever. v

- 5. I n a lock, a movable bolt, an operating member for the bolt, a movable actuating member having operative connection witlrA the o erating member, a rotatable shaft pro-l vide with a laterally extending Apxrojection, said bolt beingprovided with a s oulder to engage said projection to prevent Yretraction of the bolt when the shaft is in one position, said ,projection being arranged to move from said shoulder on operation of the shaft,

and an operative connection from the shaft vto the actuating member for retracting the bolt on further operation of the shaft.

6. In a lock, a movable bolt having a recess therein, a'rotatable shaft-having a laterally extending arm having a rejection adapted in one position of the sha t to enter= said recess and prevent yretraction of the bolt, said projection being arranged to move from said recess 0n operation of thesh'aft, a

pivoted lever having operative connection' with the bolt, and an actuating member vconnected to the lever and provided with a recessto receive said arm to shift the actuating member to retract the bolt on further movement of the shaft.

7. In a lock, a movable bolt,-an operating member for the bolt, a movable actuat-v 4ing member having operative connection with the operating member, said members being provided with coacting means to prevent movement of the operating'member when the actuatin member is in a given position, a rotatablge shaft provided with a. laterally extending projection, said bolt bef ing provided with a. shoulder to engage said projection to prevent retraction of the bolt when the shaft is in one position, said projection being arranged to move from said shoulder on operation of the shaft. and an voperative connection from the shaft to the actuating member to shift said member to' unlock the operating member on said movement of the shaft and toA retract the bolt on further movement of the shaft.

8. In a lock, a movable bolt having a recess therein, a rotatable shaft having a lati erally extending arm having a projection adapted in one position of the shaft to enter said recess and prevent retraction of the bolt. said projection being arranged to move from said recess on operation bf the shaft, a pivoted lever having operative connection with the bolt, an actuating member connected to the lever, said lever and member being provided with coacting means to prevent the operating member, a rotatable shaft provided With a laterally extending projection, said bolt being provided with a shoulder to engage said projection to prevent retraction of the bolt when the shaft is in one posi tion, said projection being arranged to mo ve from said shoulder on operation of the shaft, an operative connection from the shaft .to the actuating member for reti-acting the bolt on further operation of the shaft, and means for yieldably holding the shaft in either the first or second position.

10. In a lock, avmovable bolt having a recess therein, a rotatable shaft having a laterall)Y extending arm having a projection adapted in one position of the shaft to enter said recess and prevent retraction of the bolt, said projection being arranged to move from said recess on operation of the shaft, a pivoted lever'having operative connection with the bolt, an Vactuating member con nected to the lever and provided with a recess to receive said arm to shift the actuating member to retract the bolt on further movement of the shaft, and yieldable means for holding the shaft in the locking and unlocked positions.

ll. In a lock, a slidable bolt having an open sided recess in one side thereof, a rotatable shaft having a laterally projecting arm adapted to enter said recess in one position of the shaft and lock the bolt against movement, a pivoted operating lever connected to the bolt, a pin carried by said levcr. and a slidable actuating member having an elongated slot to receive said pin and also provided with a recess to receive the. said arm to shift the actuating member on rotation of the shaft, said elements being arranged to cause movement of the lug from the recess in the bolt to unlock the ,same on the first movement of the shaft and then to swing the operating lever to retract the bolt.

i2. In a lock, a slidable bolt having an .men sided recess in one side thereof, a rotatable shaft having a laterally projecting arm adapted to enter said recess 1n one position of the shaft and lock the bolt against movement, a pivoted operating lever connected to the bolt, a. pin carried by said lever, and a slidable actuating member ha"- ing an elongated slot to receive said pin and also provided with a recess to receive the said arm to shift the actuating member on rotation of the shaft. said lever and actuating member being provided with coacting shoulders to prevent movement of the lever when the shaft is in locking position, said elements being arranged to cause movement of the lug from the recess in the bolt and to shift the actuating member to unlock the bolt and the lever on the first movement of the shaft and then to swing the operating lever to retractthe bolt.

13. In a lock` a slidable bolt having an open sided recess in one side thereof, a rotatable shaft having a laterally projecting arm adapted to enter said recess in one position of ,the shaft. and lock the bolt against movement, a pivotedA operating lever connected to' the bolt, a pin carried by said lever, a slidable actuating member having an elongated slot to receive said pin and also provided with a recess to receive the said arm to shift the actuating member on rotation of the shaft, said lever and actuating member being provided with coacting shoulders to prevent movement of the lever when tbe shaft is in locking position, said elements being arranged to cause movement of the lugfrom the recess in the bolt and to shift the actuating member to unlock the bolt' and the lever on the, first movement of the shaft and then to swing the operating lever to retract tbe bolt, and key controlled means for shifting the actuating member to lock and unlock the operating lever.

I4. In a lock, a movable bolt. a pivoted lever having connection with the bolt for operating the same, a movable actuating member connected to thc lever, means for shifting the actuating member to retract the bolt, a rotatable cam engaging the lever, and a handle for rotating the cam to swing the lever and retract the bolt.

15. In a lock, a movable bolt, a pivoted lever having connection with the bolt for operating the same. a movable actuating member having a lost motion connection with the lever, said level' and actuating member being provided with coacting means to prevent movement of the. lever when the actuating member is in a given position, means for shifting the actuating member to unlock the lever and retract the bolt, a cam engaging the lever, and a handle for operating the cam to retract the bolt.

In testimony whereof I atlix my signature.

ALBERT F. LICKTEIG. 

